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Old Apr 6, 2005 | 10:16 PM
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exhaust

my 96 pst seems to be held back at about 2200 to 3300 rpms and blows white smoke it also makes the tranny shift hard the thing after turbo with a rod connected to , some kind of valve doesnt move but does on my brothers everytime it starts i sprayed it with wd and 2 days later it worked better than it ever had but now is back to same thing i also had my oil changed about 3 days before it worked good. if i put it to the floor in nuetral it flutters from the rpms i said and then cleans out and jumps to 3500 any ideas 96 7.3
 
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Old Apr 6, 2005 | 10:32 PM
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The valve your talking aboutis the Exhaust back pressure valve. it can be simply un-plugged.

Look at this post for how to.....

https://www.ford-trucks.com/forums/s...d.php?t=363437
 
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Old Apr 6, 2005 | 10:32 PM
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Originally Posted by OGEEEZ
my 96 pst seems to be held back at about 2200 to 3300 rpms and blows white smoke it also makes the tranny shift hard the thing after turbo with a rod connected to , some kind of valve doesnt move but does on my brothers everytime it starts i sprayed it with wd and 2 days later it worked better than it ever had but now is back to same thing i also had my oil changed about 3 days before it worked good. if i put it to the floor in nuetral it flutters from the rpms i said and then cleans out and jumps to 3500 any ideas 96 7.3
Is this after it's fully warmed up? My first thought is a failing injector o-ring.
 
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Old Apr 6, 2005 | 10:35 PM
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Also, I'd be careful running your engine up to 3500 rpms with no load. Very hard on things. It ain't no gasser.

Like kwik said.. if its doing this warm it could be o-rings.
 
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Old Apr 6, 2005 | 11:08 PM
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i thougth i read other post s that said 96 models didnt have this but i will lookthanks
 
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Old Apr 6, 2005 | 11:16 PM
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nope didnt work how touchy are these with the oil it was just changed but dont know what they put in can i just take that rod off the valve could the valve itself be froze? thanks
 
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Old Apr 6, 2005 | 11:37 PM
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when i held it to the floor just now it wouldnt go past 2000rpms and just blew white smoke
 
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Old Apr 7, 2005 | 01:22 AM
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Originally Posted by OGEEEZ
when i held it to the floor just now it wouldnt go past 2000rpms and just blew white smoke
O-rings. Getting worse. Ask Quadzilla, he had the same experience.
 
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Old Apr 7, 2005 | 09:39 PM
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my truck smoke pretty heavily after sitting for more than 3 hours or so. i'm guessin O-rings, just gotta suck it up and swap them out. i know my EBPV isn't closed cause its on a switch (need to re-wire it). next couple weeks will bring new o-rings most likely...
 
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